Chain.



Y, CHAIN. APPLICATION FILED AUG.3. 1916- Patented Jan. 30, 1917.

2 SHEETS- EET I MICHAEL COKU'S, OF FRACKVILLE, PENNSYLVANIA.

CHAIN.

Application filed August 8, 1916.

To all whom 'it may concern.:

Be it known that I, MICHAEL CoKUs, a citizen ofl the United States, residing at F raekville, in the county of Schuylkill and State of Pennsylvania, have invented a new and useful Chain, of which the following is a specification.

The device forming the subject matter of this application is a link adapted to carry a scraper of the sort which commonly constitutes part of a conveycr chain, the device being adapted peculiarly for use in and about coal mines.

One object of the invention is to provide novel means whereby a pair of opposed side members may be assembled with a link, the side members being adapted to carry a j scraper.

Another object ofthe invention is to provide novel means whereby the scraper may be assembled with the side members.

A further object of the invention is to provide novel means whereby wear may be taken up, and whereby defective parts may be renewed and replaced with a minimum expenditure of effort.

`With the above and other objects in View which will appear as the description proceeds, the invention resides in the co1nbina tion and arrangement of parts and in the de-' tails of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing rom the spirit of the invention.

In the accompanying drawings g-Figure 1 shows in side elevation, a portion of a conveyer chain constructed in accordance with the present invention; Fig. 2 is a top plan of the device, sundry parts being sectioned; Fig. 3 is a cross section approximately on the line -3 of Fig. 2; Fig. 4 is-a cross section taken approximately on the line 4 4. of Fig. 1; and Fig. 5 is a fragmental perspective showing a slight modification in the scraper; `Fig. 6 is a perspective showing the main link of the chain; Fig. 7 is a fragmental perspective showing ay slightly modified form of link; Fig. 8 is a perspective showing one of the side plates and attendant parts; Fig. 9 is a perspective showing a slight modification in the side plate for use with the link shown in Fig. 7; Fig. 10 is a fragincntal cross section showing the speeication of Letters Parent.

Patented Jan. 30, 191'?.

serial No. 113,801.

side plate of Fig. 9 coperating with a corresponding plate.

The chain forming the subject matter of' this application preferably is made of metal throughout and includes a main link 1, the ends of which Aare denoted by the reference characters 2 and 2a. The ends 2 and 2a of the main link 1 are broadened to form vcrtieal shoulders 3 adjacent the ends of the link. To the opposite verticalfaces of the link 1 side plates 4 and 5 are applied. The ends of the side plates 4 and 5 abut against the shoulders 3, and consequently, the side plates cannot move endwise, independently of the link 1. The side plates 4 and 5 are provided with upper grooves 6 cooperating to receive the upper bar of the main link 1, and are provided with lower grooves 7 cooperating` to receive the lower bar of the main link 1. At one end, the side plates 4 and 5 are provided with extensions 8 lying within the contour of the main link 1. The ends of the extensions 8 are concaved as shown at 11 to coperate with the end 2 of the main link 1 in receiving a rivet 9 engaging the ends of a pair of auxiliary links 10 located on opposite sides of the main link 1 at one end thereof. An arm 12 projects laterally from the side plate 4 and extends through an opening 14 in the side plate 5. In the arm 12 there is' fashioned a transverse opening 15. A tapered key 16 is thrust through the opening 15 in the arm 14 and bears against the side plate 5. Owing to the construction above described, the side plates 4 and 5 are held securely on the main link 1. 'lhe smaller extremity of the tapered key 16 is split to define ends 17 which are bent vertically as indicated in Figs. 1 and 2. The

ends 17 of the key'lG cooperate with'the arm 12 to prevent the key 16 from being drawn from the arm. The side plates 4 and 5 are provided with upstanding bodies 18. The forward ends of the bodies 1.8 are provided with .upright abutment )lates 19. At their sides and at their lowerwends, the body portions 1S of the side platesare equipped with laterally projecting platforms 20. The platforms 20 extend in front of the abutment plates 19, as indicated at 21. 1n the inner faces of the body portions 18 of the side plates, grooves 22 are fashioned. The body portions 18 of the side plates are equipped with alined openings 23 disposed in the same plane with the .longitudinal opening defined by the grooves 22. Studs 24C project forwardly from the abutment plates 19, and are located above the extended portions 21 of the platforms 20.

A scraper 25 rests on ythe'extended portions 21A of the platforms 20 and abuts against the plates 19. The scraper 25 is provided with openings 26 receiving the studs 24 on the abutment plates 19. The scraper may be provided at its bottom with a forwardly presented fiange 28, this detail being a modification illustrated in Fig. 5, inh which figure, the scraper is denoted by the numeral 2T, because of the modification, but, otherwise, the scraper 27 is constructed like the scraper 25 shown in Fig. 1. The scraper 25 -or 27 is equipped with an open ing 29 located between the openings 26 and alined with the longitudinal opening defined by the grooves 22.' The invention includes a T-shaped securing device 30 including a head 31 and a shank 32. rlhe head 31 of the securing device 30 bears against the forward face of -the scraper. 25, and the shank 32 of the securing device passes rearu'ardly through vthe opening 29 and the opening defined by the grooves'22.- The shank 32 of the securing device 30 is provided with a transverse opening y33 alined with open? ings 23 in the body portions 18 of the side plates Il and 5. Through the openings2f and through the opening 33 in the shank 32 of the securing device 30 is placed a tapered key 84. The smaller end of the key 34 is 'portion of one side plate, from being withdrawn.

split .to define bendable fingers 35 which as shown in Fig. coperate with the body to prevent the key The T-shaped securing device 30, combined with the keylll, the studs 24 and the openings 26, constitute a means whereby the scraper 25 is securely held in place, the shank 32 of the securing device 30 passing through the opening29 v in the scraper.

The numeral 36 indicates .a pair of laukliliary links which lie on opposite sides ofy he end 21 of the main link 1.- rIhe links 36 are connected with the end 2a of the main -link 1 by a'rivet 37 having squared heads 38,

the links 36 being grooved in their sides as indicated at 39,'to receive the squared heads 38 of the rivets.

- The general construction of the device is such thatfit can -be taken down and set up readily, when repairs are required. Because such/elements as the tapered-split key 16,

, Vthe key 34 and the like are used, wear can .be taken up readily, and no bolts are called ln -Figf of the drawings there is shown a slightly `modied form oflink. now on the market and lmown to the trade as the Wilmet link.- The shoulders 54 of this link denoted by the numeral 53, are inclined, w'neref as the shoulders 3 of the link 1 shown in ing;

Fig.v 6 are disposed substantially at right angles 'to the length of the link, or nearly so.

ln AFig. 9 of the drawings, there is shown a slightly modified form of side plate adapted to be used with the link 53 shown inv Fig. 7. In Fig. 9, parts previously described have been designated by numerals hereinbefore used, with the suffix a In Vthe modification disclosed in Fig. 9, theside plate la may be rounded on one end, as shown at 50, for the purpose hereinbefore described. In the side plate la there is fashioned an opening 51. l The side plate is shaped or beveled as shown at 55, to cooperate with the shoulder. 54. The complemental side plate 5 is provided with a lug 52 adapted to be received in the opening or 'recess 51 of thev plate 4a.

lt is to be understood that the elements'24 or 24e may be located as found expedient or necessary. A

'lhe studs 24 may be provided with openings 100, adapted to receive split keys 101. These keys 101 may be used io hold the scraper 25 in place. YWhen the'keys 101 are employed, the T-shaped seeming device 30 which is received in the grooves 22a may be dispensed with. Having thus described the is claimed is 1. In a device of the class described, a link; side members applied to opposite faces of the link, the side members having trans-v verse openings, and being provided in their inner faces with coperating grooves defining a longitudinal opening,'one side member being provided withl an aperture, and the other side member being equipped with an arm extended through the aperture; a 'ta- .pered, split key extended through the arm and coacting with the side member which is provided with the apertureya scraper disposed transversely of the side members; a fastening device including a head engagingl the scraper, and a shank passing through the scraper and entering the longitudinal openand a tapered split key mounted in the transverse openings and engaging the shank of the lfastening device.

2.1m a device of the class described, a link; side members applied to opposed faces ofthe link, the side members having transverse openings, and being provided in their inner faces with cop'erating grooves defining a longitudinal opening, one side'member being provided with an aperture, and the.

invention, what other side member being equipped with an arm extended through the aperture; Va

clamping means on' the arm and coact'lng with that side member which is provided openings receiving the studs; means coperating with the studs and the abutments in retaining the scraper; a. .key inserted through the arm and engaging the side member which is provided with the aperture; and a key inserted through the transverse openings in the abutments. In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

MICHAEL COKUS. IVitnesses:

GEORGE M. HEIM, S. T. PURNELL. 

